This is where the harmonic balancer comes in. The circular device, made of rubber and metal, is bolted at the front end of the crankshaft to help absorb vibrations. It's usually connected to the crank pulley, which drives accessories like the air conditioner.
Additional costs: Ground water wells can also be tested for radon, then, if needed, can get a water radon mitigation system installed. Installing a water radon mitigation system runs from $1,000-$4,500, and maintenance runs $0 to $150 annually.
Q: How much will it cost to fix my radon problem? A: Your cost will depend a lot on where you are in the US. In areas where there are lot of radon contractors, like the Washington, DC metro area where Infiltec is located, the price may be as low as $800 for a standard subslab depressurization system.: How long will it take to fix my radon problem? A: Most mitigation radon work is done during real estate transactions and must be completed quickly. A typical job takes about one man day, and the retest requires one day of closed house conditions, plus two or more days for the radon test.